72231196 has 6 divisors (see below), whose sum is σ = 126404600. Its totient is φ = 36115596.

The previous prime is 72231191. The next prime is 72231197. The reversal of 72231196 is 69113227.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72231191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9028896 + ... + 9028903.

Almost surely, 2^72231196 is an apocalyptic number.

It is an amenable number.

72231196 is a deficient number, since it is larger than the sum of its proper divisors (54173404).

72231196 is a wasteful number, since it uses less digits than its factorization.

72231196 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18057803 (or 18057801 counting only the distinct ones).

The product of its digits is 4536, while the sum is 31.

The square root of 72231196 is about 8498.8938103732. The cubic root of 72231196 is about 416.4615731623.

It can be divided in two parts, 72231 and 196, that added together give a palindrome (72427).

The spelling of 72231196 in words is "seventy-two million, two hundred thirty-one thousand, one hundred ninety-six".